DS80C320 PDF Datasheet


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Description

This is High-Speed/Low-Power Micro. DS80C320, DS80C323 High-Speed, Low-Power Micro www.maxim-ic.com FEATURES § 80C32-Compatible - 8051 pin and instruction set compatible - Four 8-bit I, O ports - Three 16-bit timer, counters - 256 bytes scratchpad RAM - Addresses 64 kB ROM and 64 kB RAM High-speed architecture - 4 clocks, machine cycle (8032=12) - DC to 33 MH- (DS80C320) - DC to 18 MH- (DS80C323) - Single-cycle instruction in 121 ns - Uses less power for equivalent work - Dual data pointer - Optional variable length MOVX to access fast, slow RAM, peripherals High integration controller includes: - Power- fail reset - Programmable watchdog timer - Early- warning power- fail interrupt Two full-duplex hardware serial ports 13 total interrupt sources with six external Available in 40-pin DIP, 44-pin PLCC and TQFP PIN ASSIGNMENT § § § § § Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through v.